James Hansen, one of the world’s leading climate scientists, will today call for the chief executives of large fossil fuel companies to be put on trial for high crimes against humanity and nature, accusing them of actively spreading doubt about global warming in the same way that tobacco companies blurred the links between smoking and cancer.

Hansen will use the symbolically charged 20th anniversary of his groundbreaking speech to the US Congress – in which he was among the first to sound the alarm over the reality of global warming – to argue that radical steps need to be taken immediately if the “perfect storm” of irreversible climate change is not to become inevitable.

Speaking before Congress again, he will accuse the chief executive officers of companies such as ExxonMobil and Peabody Energy of being fully aware of the disinformation about climate change they are spreading.

In an interview with the Guardian he said: “When you are in that kind of position, as the CEO of one the primary players who have been putting out misinformation even via organisations that affect what gets into school textbooks, then I think that’s a crime.”

Of course the oil companies are aware they are spreading “disinformation.” They don’t care about the world they live on, because they don’t have to. Yearly bonuses in the hundreds of millions of dollars range, means they can buy all the food and water they’ll need, while the rest of us die.

[Hansen] wants to see a moratorium on new coal-fired power plants, coupled with the creation of a huge grid of low-loss electric power lines buried under ground and spread across America, in order to give wind and solar power a chance of competing. “The new US president would have to take the initiative analogous to Kennedy’s decision to go to the moon.”

His sharpest words are reserved for the special interests he blames for public confusion about the nature of the global warming threat. “The problem is not political will, it’s the alligator shoes – the lobbyists. It’s the fact that money talks in Washington, and that democracy is not working the way it’s intended to work.”

This is what corruption and a dumbed-down population gets us — 20 years of doing next to nothing about the climate change that will destroy our ability to survive on this planet.